445055121 has 32 divisors (see below), whose sum is σ = 797863680. Its totient is φ = 239355648.

The previous prime is 445055119. The next prime is 445055131. The reversal of 445055121 is 121550544.

445055121 is a `hidden beast` number, since 44 + 50 + 551 + 21 = 666.

It is not a de Polignac number, because 445055121 - 2¹ = 445055119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (445055131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66046 + ... + 72471.

It is an arithmetic number, because the mean of its divisors is an integer number (24933240).

Almost surely, 2^445055121 is an apocalyptic number.

It is an amenable number.

445055121 is a deficient number, since it is larger than the sum of its proper divisors (352808559).

445055121 is a wasteful number, since it uses less digits than its factorization.

445055121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138550 (or 138544 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 445055121 is about 21096.3295622722. The cubic root of 445055121 is about 763.4921934813.

The spelling of 445055121 in words is "four hundred forty-five million, fifty-five thousand, one hundred twenty-one".